When comparing software.jessies.org terminator vs Pantheon Terminal, the Slant community recommends Pantheon Terminal for most people. In the question“What are the best terminal emulators for UNIX-like systems?” Pantheon Terminal is ranked 17th while software.jessies.org terminator is ranked 36th. The most important reason people chose Pantheon Terminal is:
When a process has ended, Pantheon Terminal sends a notification bubble to the desktop notification server and indicates which tab generated the notification.
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Pros

Pro UTF-8 support enables character encoding
Due to UTF-8, this terminator won't mangle your favorite accented characters, and it copes well with languages where there's a mix of normal and wide glyphs (such as Greek).

Pro Unlimited scrollback
Terminator won't throw away output when it scrolls off the top of the screen, nor when it reaches any arbitrary limit.

Pro Multiple tabs
This is just like tabbed browsing, only with terminals, and means that multiple pages or documents are contained in a single window.

Pro Horizontal scrolling
Most terminal emulators wrap text when it intrudes upon the right margin. Terminator doesn't; it instead provides a horizontal scrollbar when necessary.
Pro End process notifications
When a process has ended, Pantheon Terminal sends a notification bubble to the desktop notification server and indicates which tab generated the notification.
Pro Can easily restore a previous session
Pantheon Terminal remembers the window size, position, windowed/maximized/fullscreen state, and open tabs in between sessions.
Pro Advanced tab handling
Using the Granite Dynamic Notebook widget (which includes tab close history), double click the tab bar for a new tab, duplicating tabs, quickly closing all other tabs, auto-hiding/revealing tab close buttons, etc.
Pro Smart copy and paste
The keyboard shortcut for copy + paste is intelligently adapted andnbased on text selection and clipboard state. This makes it possible to use standard copy + paste shortcuts without colliding with standard ctrl + c behavior in the Terminal.
Pro Search feature
Cons
Con Seems to have been abandoned
There are several issues posted since 2013 on the project repository that have not yet been solved.
Con Heavy
Con limited customization options
Con RAM usage increases considerably over time
There is a RAM leak when using the Pantheon Terminal that adds up over time and use.
Con Incompatible with LTS Ubuntu
Pantheon is developed and binaries are released for a near blessing edge operating system (elementary OS). As such, installing it on an LTS Ubuntu system may be nearly impossible without replacing a large portion of the LTS stack that Ubuntu-targeted software expects.
Con Restrictive license
